from:"Hubert Iwaniuk"

Re: ClojureScript: catching all javascript exceptions

2012-11-01 Thread Hubert Iwaniuk


In past I used (goog.debug.ErrorReporter/installlogError)
It worked great.

HTH,
Hubert.

Steve Buikhuizen wrote:

No problem. On the client (cljs) you should:

 1. require [goog.debug.ErrorReporter :as reporter]
 2. (reporter/install/er)

On the server (I'm using Noir which supplies defpage)

(defpage [:post /er] {:keys [error line script trace]}

  (service/record-client-error error line script trace)

(strACK))

where record-client-error is a function you create that does whatever 
you want it to do e.g. save to a database, log using log4j or send to 
an aggregator e.g. Loggly


I know this is still pretty brief. If you want more detail, just say 
which part is not clear - I'll happily elaborate


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Re: after a few days, my app dies -- how should I diagnose?

2012-10-24 Thread Hubert Iwaniuk

If you run your process in screen/tmux it will be attached to active 
TTY, it will not receive HUP signal.


Also if there would be important (any?) output from process you will see 
it in tmux/screen.


So either nohup it or run it in session that doesn't terminate after you 
exit.


HTH,
Hubert.

larry google groups wrote:


I would be happy to run it in screen but I don't understand what the 
advantage is. I can redirect the output to a log, without using 
screen, and I can automate restarts with something like Puppet or 
Supervisor. What do I need screen for?






On Tuesday, October 23, 2012 7:37:03 AM UTC-4, Hubert Iwaniuk wrote:

Not sure if that is a case but could your run your software in
some long running shell like tmux or screen.
You redirected all standard file descriptors, so it should not be
a problem, but it is worth a try.

HTH,
Hubert.

AtKaaZ wrote:

You could save the std out and err to some .log and can inspect
it later, I'd expect you'd see some exceptions if any were thrown.
who-is-logged-in-1.0.1-standalone.jar 4 /dev/null
stdouterr.log 

On Tue, Oct 23, 2012 at 12:12 AM, Michael Klishin
michael@gmail.com javascript: wrote:

2012/10/23 larry google groups lawrenc...@gmail.com
javascript:

If memory is not the problem, what other problems should
I look for? 



Unhandled exceptions, although in the case of a Web app,
Jetty and similar should cover last
resort exception handling that will prevent main JVM thread
from terminating.

-- 
MK


http://github.com/michaelklishin
http://github.com/michaelklishin
http://twitter.com/michaelklishin
http://twitter.com/michaelklishin

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I may be wrong or incomplete.

Please express any corrections / additions,
they are encouraged and appreciated.
At least one entity is bound to be transformed if you do ;)

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Re: after a few days, my app dies -- how should I diagnose?

2012-10-23 Thread Hubert Iwaniuk

Not sure if that is a case but could your run your software in some long 
running shell like tmux or screen.
You redirected all standard file descriptors, so it should not be a 
problem, but it is worth a try.


HTH,
Hubert.

AtKaaZ wrote:
You could save the std out and err to some .log and can inspect it 
later, I'd expect you'd see some exceptions if any were thrown.

who-is-logged-in-1.0.1-standalone.jar 4 /dev/null stdouterr.log 

On Tue, Oct 23, 2012 at 12:12 AM, Michael Klishin 
michael.s.klis...@gmail.com mailto:michael.s.klis...@gmail.com wrote:


2012/10/23 larry google groups lawrencecloj...@gmail.com
mailto:lawrencecloj...@gmail.com

If memory is not the problem, what other problems should I
look for? 



Unhandled exceptions, although in the case of a Web app, Jetty and
similar should cover last
resort exception handling that will prevent main JVM thread from
terminating.

-- 
MK


http://github.com/michaelklishin
http://twitter.com/michaelklishin

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Re: Q about eval-and-print function in clojurescript's cljs.repl (repl.clj)

2012-09-19 Thread Hubert Iwaniuk

If you look at cljs counterpart of it you'll see that maps are send as 
responses, that is why read-string is used.


HTH

Frank Siebenlist wrote:


Sorry - I've answered part of my own Q by reading the read-string doc… 
nothing is eval'ed of the result - just the first object is read.


Still unclear why read-string is used - why would a second object be 
discarded? Like:


user= (read-string (+ 1 2) (- 3 2))
(+ 1 2)

Still confused...

-FS.


On Sep 18, 2012, at 11:51 PM, Frank 
Siebenlistfrank.siebenl...@gmail.com wrote:




I'm trying to understand the clojurescript-code of the repl 
functionality, and I'm confused…


The following cljs.repl/eval-and-print function takes a cljs-form, 
compiles it, sends it to the browser as javascript, and then receives 
the result, and the… try's to use read-string on that return value:


---
(defn- eval-and-print [repl-env env form]
(let [ret (evaluate-form repl-env
(assoc env :ns (ana/get-namespace ana/*cljs-ns*))
cljs repl
form
(wrap-fn form))]
(try (prn (read-string ret))
(catch Exception e
(if (string? ret)
(println ret)
(prn nil))
---

Why does it call read-string on the returned result from the js-eval?

The eval'ed compiled javascript could result in a clojure-form that 
would be eval'ed on the return (???), and the result of the latter is 
then printed.


Confusingly yours, FrankS.





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Re: Browser as an Evaluation Environment error

2012-09-10 Thread Hubert Iwaniuk

Clue here is file:/// protocol.
REPL will not work with mixed protocols, if you go to
http://localhost:9000/ it will not refer to file:///

HTH,
Hubert.

goracio wrote:

well manual says

Once the REPL has started, you will see the message Starting server
on port 9000. At this point, open the html page by going to
http://localhost:9000 to complete the connection. Once the page is
open and the connection is made, the REPL prompt will be displayed.

Any way opened html page and get these errors in chrome
Failed to load resource
file:///home/bob/cljproj/hello-world/resources/public/deps.js
Uncaught Error: URI file:/robots.txt is invalid for field ppu
repl:1206
http://localhost:9000/repl?xpc=%7B%22cn%22%3A%22A2ZSJ4Cm9m%22%2C%22tp%22%3Anull%2C%22ppu%22%3A%22file%3A%2Frobots.txt%22%2C%22lpu%22%3A%22http%3A%2F%2Flocalhost%3A9000%2Frobots.txt%22%7D

and firefox firebug shows this

12:19:50.653
log:CrossPageChannel created: 5f3T9OECHu
12:19:50.656
log:connect() deferred
12:19:50.678
log:peer iframe created (xpcpeerX80r)
12:19:50.679
log:connect()
12:19:50.681
log:Transport created: NativeMessagingTransport
Error: URI file:/robots.txt is invalid for field ppu
http://localhost:9000/repl?xpc=%7B%22cn%22%3A%22Iz3VclBCyY%22%2C%22tp%22%3Anull%2C%22ppu%22%3A%22file%3A%2Frobots.txt%22%2C%22lpu%22%3A%22http%3A%2F%2Flocalhost%3A9000%2Frobots.txt%22%7D

понедельник, 10 сентября 2012 г., 11:58:57 UTC+4 пользователь Gijs S.
написал:

I once ran into this error message when I entered the address
http://localhost:9000/repl; into the address bar of the browser
by mistake. This address should only be used in ClojureScript code.

You should open a page in the browser that contains compiled
ClojureScript that connects to this address. When you follow the
steps at

https://github.com/clojure/clojurescript/wiki/The-REPL-and-Evaluation-Environments

https://github.com/clojure/clojurescript/wiki/The-REPL-and-Evaluation-Environments
you should have a foo.cljs, foo.js and index.html file. Open the
index.html file in your browser to connect the browserrepl.

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ClojureScript, Chrome Extension and BrowserREPL

2012-07-17 Thread Hubert Iwaniuk

Hello Everyone,

Did anyone managed to get BrowserREPL running within Chrome Extension?
I'm having hard time getting it up.

Basically what happens for me is CrossPageChannel communication
initialization failure both from content script and background.
content_script: Uncaught Error: CrossPageChannel: Can't connect, peer
window-object not set. 
background: Uncaught Error: URI
chrome-extension://mkifioecnlocipnafdcihlojkpeknfcf/robots.txt is
invalid for field ppu

Could anyone enlighten me why we need CrossPageChannel here?
I can make connections to localhost from extension no problem, so if
CPC would not be total necessity, there is hope to get repl in some
form for Chrome Extension development.

Thanks in advance,
Hubert

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Re: ClojureScript, Chrome Extension and BrowserREPL

2012-07-17 Thread Hubert Iwaniuk

Hi David,

Do you know rationale for using CrossPageChannel?
If that could be removed it would simplify BrowserREPL a lot, and would
already unlock Chrome Extension.

Cheers,
Hubert.

David Nolen mailto:dnolen.li...@gmail.com
July 17, 2012 6:15 PM

CrossPageChannel does not work unless the page is be properly served
over HTTP from what I can tell. Which won't be the case here. Patch
welcome for supporting other BrowserREPL transports that don't have
this issue.

David

Hubert Iwaniuk mailto:neo...@kungfoo.pl
July 17, 2012 5:22 PM
Hello Everyone,

Did anyone managed to get BrowserREPL running within Chrome Extension?
I'm having hard time getting it up.

Basically what happens for me is CrossPageChannel communication
initialization failure both from content script and background.
content_script: Uncaught Error: CrossPageChannel: Can't connect, peer
window-object not set.
background: Uncaught Error: URI
chrome-extension://mkifioecnlocipnafdcihlojkpeknfcf/robots.txt is
invalid for field ppu

Could anyone enlighten me why we need CrossPageChannel here?
I can make connections to localhost from extension no problem, so if
CPC would not be total necessity, there is hope to get repl in some
form for Chrome Extension development.

Thanks in advance,
Hubert

Re: docstrings of if-let and when-let incorrect

2012-05-15 Thread Hubert Iwaniuk


I tried using if-let with multiple binding in past as well.
Following least surprise principle, I would like to see support for 
multiple bindings.


Cheers,
Hubert.

Vinzent mailto:ru.vinz...@gmail.com
May 15, 2012 5:47 PM
Or maybe if-let and when-let should support multiple bindings, like 
the doc states.


воскресенье, 13 мая 2012 г., 4:55:40 UTC+6 пользователь Borkdude 
написал: --

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Borkdude mailto:michielbork...@gmail.com
May 13, 2012 12:55 AM
The docstring of if-let is as follows:

bindings = binding-form test

If test is true, evaluates then with binding-form bound to the value of
test, if not, yields else

I think it should be mentioned in the docs that if-let and when-let 
support only /one binding/, not multiple bindings (like for 
example https://www.refheap.com/paste/2700).


Kind regards,

Michiel
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Re: Looking to help out with an open source project...

2012-03-04 Thread Hubert Iwaniuk

IMHO it is crucial that you contribute to project that you personally
find interesting.
So I would suggest to follow with learning and most likely you will
find a project you want to contribute to.

Enjoy,
Hubert



On Thu, Mar 1, 2012 at 4:46 AM, Sam Garrett samdgarr...@gmail.com wrote:
 Hello google Clojure group.

 I'm fairly new to clojure but what I've used and implemented so far has been
 quite interesting. So I was wondering if anyone knew of/or has some open
 source projects written in Clojure that I could get involved in and help
 out, preferably something small as this will be my first involvement in open
 source. My day job is mostly using jquery and javascript for UI work so
 that's where my expertise lies but anyway I'm looking to improve and help
 out.

 Thanks for reading and I look forward to helping out!

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Re: Clojurescript One and Websockets

2012-03-04 Thread Hubert Iwaniuk

IIRC WebSocket support was not yet released in Google Closure Library.
You will need to run against development version of closure-library.
For project using it check out: https://github.com/neotyk/ws-cljs/ and
live demo: http://lab01.kungfoo.pl:8108/

Cheers,
Hubert



On Fri, Mar 2, 2012 at 4:51 AM, Brian Rowe bripr...@gmail.com wrote:
 Hi,

 I'm thinking about using clojurescript one a starting point for a web game.
 I would like to use websockets as the primary communication mechanism
 between the browser and the server.  As far as I know Zack Tellman's Aleph
 is the only clojure web server that supports websockets.  Is this true?  If
 so, are there any guides showing how to modify clojurescript one to use
 Aleph?  If there are no guides, how much work would it take to modify cljs
 one to use aleph?

 Thanks!

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[ANN] http.async.client v0.4.1 realeased

2012-02-07 Thread Hubert Iwaniuk

http.async.client is Asynchronous HTTP Client for Clojure and just got
v0.4.1 release.

This release is mainly community contributions.

Code: http://github.com/neotyk/http.async.client
Docs: http://neotyk.github.com/http.async.client/
Changelog: http://neotyk.github.com/http.async.client/changelog.html
Clojars: http://clojars.org/http.async.clietn

This release features:
1 Upgrade AHC to 1.7.0
2 Issues #26, #27, #28
3 Improved logging
4 Tested against Clojure 1.4.0-beta1

Thank you for contributions: Justin Kramer, Brian Tatnall and Karsten Lang.

Hope you enjoy it,
Hubert

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Re: Colliding hashes

2011-12-31 Thread Hubert Iwaniuk

Should we watch the whole video to see what you mean?
At what time is it important?

Cheers,
Hubert



On Sat, Dec 31, 2011 at 1:39 PM, Brian Mosley brian.d.mos...@gmail.com wrote:
 Saw this in a scala mailing list thread:

 http://www.youtube.com/watch?v=R2Cq3CLI6H8

 Should the clojure hash be fixed?

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[ANN] http.async.client v0.4.0

2011-12-30 Thread Hubert Iwaniuk

http.async.client is Asynchronous HTTP Client for Clojure and just got
v0.4.0 release.

Code: http://github.com/neotyk/http.async.client
Docs: http://neotyk.github.com/http.async.client/
Changelog: http://neotyk.github.com/http.async.client/changelog.html
Clojars: http://clojars.org/http.async.client

This release features:
1 Clojure 1.3 compatible
2 Support for multiple values for same key (QString)
3 Clojure contrib independence
4 Upgrade async-http-client to v1.6.5

Hope you enjoy it and Happy New Year!
Hubert

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Re: Really loving Clooj but..

2011-12-29 Thread Hubert Iwaniuk

Just add (println min) before if-let and you will see what is happening.

Hubert.

On Thu, Dec 29, 2011 at 10:23 PM, Erlis Vidal er...@erlisvidal.com wrote:
 Hi guys,

 I've using Clooj and following the labrepl but I'm hitting a wall right now.
 How can I debug here?

 This the code I want to debug

 (defn min-1 [x  more]
   (loop [min x
  more (seq more)]
     (if-let [x (first more)]
   (recur (if ( x min) x min) (next more))
   min)))

 This is suppose to return the min value but it's not, It's returning me the
 same sequence I'm passing:

 student.dialect= (min-1 [1 2 3])
 [1 2 3]

 Even if you find the problem, don't forget to let me know how can I debug
 here, so I can do it the next time

 Thanks
 Erlis

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Re: Which autodoc dep for clojure 1.3 (and advice on how to solve such questions generally)

2011-11-04 Thread Hubert Iwaniuk


Hi Phil,

With Leiningen 1.6.1.1 on Java 1.6.0_26 Java HotSpot(TM) 64-Bit Server VM 
executing:
$ lein plugin install audodoc 0.7.1
fails advising to download artifact by hand.
Though searching for it:
$ lein search autodoc AND NOT g:org.clojars*
Shows line with:
[autodoc 0.7.1] A tool to build HTML documentation from your Clojure source

Could it be that somehow metadata is not in sync with content of repository?

Currently I'm not able to get autodoc running at all :(

Cheers,
Hubert.

Phil Hagelberg wrote:

On Wed, Nov 2, 2011 at 2:09 PM, Craig Brozefskycr...@red-bean.com  wrote:

I am making a project that uses clojure 1.3, and I want to use autodoc,
and I'm not sure which dependency line should be in my project.clj.


Things like autodoc are usually best installed as user-level plugins,
so stick with lein plugin install $FOO $VERSION. To find the right
version, usually your best bet is something like:

 $ lein search autodoc AND NOT g:org.clojars*


So, I'm asking for a suggested dep for that, but also I am wondering
what is the standard operating procedure for resolving such dependency
issues.  Is there some Maven black magick I should familiarize myself
with in order to list packages and their deps?


If you're interested in a full transitive dependency listing, you
actually need Maven:

 $ lein pom  mvn dependency:tree

I hope to port that to lein at some point as it's fantastically useful.

-Phil



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Re: Please try the alphas and betas!

2011-11-02 Thread Hubert Iwaniuk

http://bit.ly/clojure-releases

Stuart Halloway wrote:

I'd like to second what Bill said...I don't really have the time to
setup a clojure build process to test out the 1.4 Alphas/Betas, but if
there was a way for me to get to it via lein...I would just target 1.4
for all my day-to-day development.

This should work:

:repositories [[sonatype-snapshots
https://oss.sonatype.org/content/repositories/snapshots/;]]
:dependencies [[org.clojure/clojure 1.4.0-master-SNAPSHOT] ...]

Is there a way to peg a particular snapshot? If we find that
something breaks, we'd want to roll back to a previous version until
the problem is fixed. It looks like the maven metadata only has the
latest snapshot recorded (I may be wrong... I'm certainly not a Maven
guru).

-John

This is the reason the we release such a large number of alphas and betas, so
we have something more reliable than snapshots to peg to. The following search
on maven central will show you all the Clojure releases:

http://search.maven.org/#search%7Cgav%7C1%7Cg%3A%22org.clojure%22%20AND%20a%3A%22clojure%22

Does anybody know a better link that automatically shows this same info? If
not, I will add this link in the wiki.

Stu

October Amsterdam Clojure

2011-09-27 Thread Hubert Iwaniuk

Good news everyone! *

tl;dr - http://bit.ly/ams-clj

On Wednesday, October 12th Amsterdam Clojurians is organizing October Amsterdam 
Clojure.

Same as last year, we are proud to have a great speaker: Uncle Bob Martin.

Sourcesense.com is our proud sponsor and made it possible to host the event in 
great venue DeZwijger.nl.

This year we will have 3 talks:
- Cleaner than Java by Cees van Kemenade
- Baking a Clojure webapp in 15m by Pepijn de Vos, Hubert Iwaniuk
- The Case for Clojure by Uncle Bob Martin

Please feel invited and register (we have limited seating) at 
http://bit.ly/ams-clj
 
Looking forward to meeting you on Wednesday, October 12th,
Your hosts.


* http://www.youtube.com/watch?v=1D1cap6yETA

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Re: Why are some Google Closure library files not available in Clojurescript?

2011-08-14 Thread Hubert Iwaniuk

Hi Conrad,

You can give a try to my fork: 
https://github.com/neotyk/clojurescript/tree/35-cl-head
And vote on a ticket: http://dev.clojure.org/jira/browse/CLJS-35

I'm using local storage as well as websockets.

Cheers,
Hubert.

On Aug 12, 2011, at 8:34 PM, Conrad wrote:

 In case anyone wants to know what the answer is: goog.storage was
 added with closure library revision 888, but the version used in
 clojurescript is revision 790. This is because Google hasn't released
 any pre-packaged versions of the closure library since March.
 
 On Aug 12, 1:47 pm, Conrad drc...@gmail.com wrote:
 Hi everyone- I'm loving clojurescript and am trying to create a test
 app with it. This test app was going to use goog.storage, but for some
 reason this library doesn't appear to be available when I install
 clojurescript (unlike goog.dom, goog.events, etc. which work fine)
 
 You can see this library listed in the Google Closure 
 docs:http://closure-library.googlecode.com/svn/docs/index.html
 
 For some reason, when I bootstrap clojurescript as per Rich's
 instructions this library is missing (i.e. I'm missing the directory
 ~/clojurescript/closure/library/closure/goog/storage)
 
 One guess I have as to why this is missing is that clojurescript isn't
 installing the latest version of the closure library, since
 goog.storage appears to be a more recent addition. Does anyone know if
 this is the reason for my issue? Is there any way I can safely update
 the version of the closure library? If the closure library is out of
 date on purpose, does anyone know when support of a more recent
 closure library version is planned?
 
 Thanks!
 
 Conrad Barski
 
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Re: Silly Chat: Clojure, ClojureScript and WebSockets

2011-08-12 Thread Hubert Iwaniuk

Aleph

On Aug 11, 2011, at 11:49 PM, Jimmy wrote:

 Whats handling the serverside websockets connections?
 
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Silly Chat: Clojure, ClojureScript and WebSockets

2011-08-11 Thread Hubert Iwaniuk

Good news everyone!

Here is a sample Clojure ClojureScript application that uses WebSocket for 
communication.
http://lab01.kungfoo.pl:8108/

Source code: https://github.com/neotyk/ws-cljs/

Nothing really fancy, just a POC kind of thing.


Cheers,
Hubert.

P.S. We are hiring in Amsterdam.

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Re: ClojureScript

2011-07-26 Thread Hubert Iwaniuk

Thanks Peter for sharing this.

Great workflow!

Cheers,
Hubert.

On Jul 26, 2011, at 6:59 AM, Peter Taoussanis wrote:

 I would also love to know how you set this up in a little more detail. It 
 really sounds like an excellent approach…
 
 Sure: it's not complicated! I'm writing this in a hurry though- so
 hope it's still clear.
 
 Basically I just define a memoized dynamic scripts function that
 returns a map with a text/javascript Ring response, along with a hash
 of that response.
 
 So something like (def dynamic-scripts (memoize (function []
 {:response foobar :hash (make-hash foobar)}))
 
 Then I've got a Compojure route configured to serve requests like so:
 (GET /dynamic-stuff/:hash/scripts.js {} (:response (dynamic-
 scripts)))
 
 This'll just send back the memoized script response anytime a request
 is made for /dynamic-stuff/whatever/scripts.js
 
 The /whatever/ is important since it let's me automatically include
 the current hash in any script tags in the HTML with URI (str /
 dynamic-stuff/ (:hash (dynamic-scripts)) /scripts.js).
 
 
 Now all I need to do when I want to tweak the scripts is reevaluate
 the namespace they're in and it'll re-hash, meaning that all future
 requests for scripts.js go to the new resource - avoiding any possible
 caching issues.
 
 
 What I've described so far doesn't necessitate anything ClojureScript.
 But with ClojureScript, the dynamic-scripts function can be easily
 modified to produce it's response by compiling ClojureScript source.
 This is awesome since it means I can keep everything in one
 environment, and compilation happens automatically any time there is a
 change to the underlying source. The scripts.js is always optimized,
 always up-to-date, and always hashed to avoid caching problems.
 
 When I want to test a change to the scripts, I just reevaluate the ns
 then refresh my browser and the changes are live. If there's a major
 compile-time bug in the scripts, it'll get caught before any changes
 take affect.
 
 BTW if the devs are listening, it'd be nice if cljsc/build could one
 day also support input/output directly via strings :) That'd make all
 this absolutely trivial(er).
 
 --
 Peter
 
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Running ClojureScrtipt

2011-07-26 Thread Hubert Iwaniuk

While tinkering with ClojureScript I've created sample that uses WebSockets to 
communicate between Clojure and ClojureScript.
WebSocket support in closure-library is only in SVN for now, so current 
bootstrap of ClojureScript will not have it.
I've patched bootstrap to get ClojureScript running against HEAD of 
closure-library. [1]

So how crazy dangerous it is to run agains closure-library HEAD?

I've created JIRA issue for it CLJ-35 [2].
CA was signed already.

Cheers,
Hubert.

[1] https://github.com/neotyk/clojurescript/tree/closure-library-head
[2] http://dev.clojure.org/jira/browse/CLJS-35

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Re: ANN: status-codes keyword status codes for compojure

2011-04-01 Thread Hubert Iwaniuk

New version is out v0.2 featuring dependency on latest and greatest of 
compojure and special response code for today.
418 I'm a teapot

Cheers,
Hubert Iwaniuk.

On Mar 31, 2011, at 11:51 PM, Hubert Iwaniuk wrote:

 status-codes allows you to report HTTP Response Status Codes as keywords like 
 :ok, :accepted and so on.
 
 You can find code at github http://github.com/neotyk/status-codes
 
 (use 'status-codes)
 (GET /test _ :accepted)
 ;; or
 (PUT /test _ {:headers {Location ..} :status :created})
 
 Enjoy,
 Hubert Iwaniuk.
 
 

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ANN: status-codes keyword status codes for compojure

2011-03-31 Thread Hubert Iwaniuk

status-codes allows you to report HTTP Response Status Codes as keywords like 
:ok, :accepted and so on.

You can find code at github http://github.com/neotyk/status-codes

(use 'status-codes)
(GET /test _ :accepted)
;; or
(PUT /test _ {:headers {Location ..} :status :created})

Enjoy,
Hubert Iwaniuk.


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Re: better error messages smaller stack traces

2011-02-10 Thread Hubert Iwaniuk

Hi,

Jeff correct me if I'm wrong but I think you are after something along the 
following lines.
Instead:
(defn f [x] {:pre [(some-fancy-validation x)]} ..)

To have something like this:
(defn f [x] {:pre [^{:msg here goes description of what has not been valid} 
(some-fancy-validation x)]} ..)

It could turn precondition to a bit more user-friendly construct.

I would also like to have assert-args public.

Cheers,
Hubert.
On Feb 10, 2011, at 8:10 PM, Daniel Werner wrote:

 On 10 February 2011 17:05, Jeff Rose ros...@gmail.com wrote:
 Sorry for the reply spam, but I've just remembered another error
 reporting issue: pre and post conditions.  They are a great feature
 and I'd like to use them more often, but the error messages they
 produce are virtually useless in comparison to just writing your own
 check with a custom exception.  How about having optional error
 messages for the conditions?
 
 You can make your pre/post condition AssertionErrors more
 human-readable by factoring out their logic into helper functions:
 
 (defn valid-article-id? [art-id]
  (or (and ( (mod x 42) 3) (frobz x)) (qux x)))
 
 (defn buy-article [art-id]
  {:pre [(valid-article-id? art-id)]}
  ...)
 
 Thus, the AssertionError message will complain about
 valid-article-id? failing instead of the rather cryptic or and
 mod. If you need even more flexibility, it is also possible to throw
 an exception from the helper function. Not pretty, though.
 
 That said, I'd really wish for the private clojure.core/assert-args
 macro to be made public. It's very comfortable to work with and
 provides for semi-standardized error messages (offending argument name
 always in front).
 
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Re: http.async.client v0.2.2 released

2011-02-09 Thread Hubert Iwaniuk

Hi Takahiro,

Thank you for your feedback.
Inline are my answers.

On Feb 9, 2011, at 8:13 AM, Takahiro Hozumi wrote:

Hi,
Thank you for the introduction. Here is my little feed back:
1. I want to see a example using callbacks.

Documentation on on callbacks can be found here:
http://neotyk.github.com/http.async.client/docs.html#sec-1_3_1_2

Please see tests:
status callback:
https://github.com/neotyk/http.async.client/blob/master/test/http/async/client/test.clj#L162
headers callback:
https://github.com/neotyk/http.async.client/blob/master/test/http/async/client/test.clj#L176
And production code:
body part callback:
https://github.com/neotyk/http.async.client/blob/master/src/clj/http/async/client.clj#L106
completion and error callbacks:
https://github.com/neotyk/http.async.client/blob/master/src/clj/http/async/client.clj#L118

Also take a look at currently provided callback:
https://github.com/neotyk/http.async.client/blob/master/src/clj/http/async/client/request.clj#L65

I'll improve documentation and describe callback a bit better.
https://github.com/neotyk/http.async.client/issues/labels/Docs#issue/12
Though please comment on it if you would like to see something more to be added
there except examples.

2. Is RequestBuilderWrapper.java necessary? Why not simply use
RequestBuilder?

Unfortunately it is necessary. The way original RequestBuilder uses generics
doesn't work with direct Clojure invocations.

3. I prefer reify or defrecord to proxy for performance reason, when
implement interface.

I've created an issue to replace proxy usage with reify, thank you for the tip.
https://github.com/neotyk/http.async.client/issues#issue/13

4. I think hash-map is more suitable rather than cond in convert-
method function.

+1 https://github.com/neotyk/http.async.client/issues/issue/14

Thanks.

Thank you,
Hubert.

On 2月8日, 午前3:30, Hubert Iwaniuk neo...@kungfoo.pl wrote:
Hi All,

Just released v0.2.2 of HTTP Asynchronous Client.

Featuring following changeloghttp://bit.ly/hc9dxt

- get-encoding helper works w/o Content-Type header
- upgrade async-http-client to v1.5.0
- exposed more configuration options
- zero byte copy mode
- allow providing your own poll
- allow Asynchronous Connect
- fix seq streaming API
- lots of performance improvements from async-http-client to v1.5.0

Uploaded to clojarshttp://bit.ly/hVAY8z

Documentation is here:http://bit.ly/epmcMw

Enjoy fresh release,
Hubert.

Re: http.async.client v0.2.2 released

2011-02-09 Thread Hubert Iwaniuk

Hi Las,

Glad you like it!

What would like to see in upcoming releases of http.async.client?

Thank you!

Cheers,
Hubert.

On Feb 9, 2011, at 12:56 PM, László Török wrote:

Hi,

I've been using http.async.client for my play projects and it seems very
promising. Thanks for this awesome library! :)

Las

2011/2/9 Hubert Iwaniuk neo...@kungfoo.pl
Hi Takahiro,

Thank you for your feedback.
Inline are my answers.

On Feb 9, 2011, at 8:13 AM, Takahiro Hozumi wrote:

Hi,
Thank you for the introduction. Here is my little feed back:
1. I want to see a example using callbacks.

Documentation on on callbacks can be found here:
http://neotyk.github.com/http.async.client/docs.html#sec-1_3_1_2

Also take a look at currently provided callback:
https://github.com/neotyk/http.async.client/blob/master/src/clj/http/async/client/request.clj#L65

2. Is RequestBuilderWrapper.java necessary? Why not simply use
RequestBuilder?

Unfortunately it is necessary. The way original RequestBuilder uses generics
doesn't work with direct Clojure invocations.

3. I prefer reify or defrecord to proxy for performance reason, when
implement interface.

I've created an issue to replace proxy usage with reify, thank you for the
tip.
https://github.com/neotyk/http.async.client/issues#issue/13

4. I think hash-map is more suitable rather than cond in convert-
method function.

+1 https://github.com/neotyk/http.async.client/issues/issue/14

Thanks.

Thank you,
Hubert.

On 2月8日, 午前3:30, Hubert Iwaniuk neo...@kungfoo.pl wrote:
Hi All,

Just released v0.2.2 of HTTP Asynchronous Client.

Featuring following changeloghttp://bit.ly/hc9dxt

Uploaded to clojarshttp://bit.ly/hVAY8z

Documentation is here:http://bit.ly/epmcMw

Enjoy fresh release,
Hubert.

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Re: http.async.client v0.2.2 released

2011-02-09 Thread Hubert Iwaniuk

Hi Rob,

You need to close the client once you are done with it.
Please see Managing http.async.client of manual especially Closing 
http.async.client 
http://neotyk.github.com/http.async.client/docs.html#sec-1_2_6_11

HTH,
Hubert.

On Feb 9, 2011, at 3:29 PM, Rob Wolfe wrote:

 
 On 7 Lut, 19:30, Hubert Iwaniuk neo...@kungfoo.pl wrote:
 Hi All,
 
 Just released v0.2.2 of HTTP Asynchronous Client.
 
 I have some problem using this library. Having such simple testing
 program:
 code
 (ns test.http
  (:require [http.async.client :as c]))
 
 (defn test-http
  []
  (println start)
  (let [response (c/GET http://github.com/neotyk/
 http.async.client/)]
(println await)
(c/await response)
(println string)
(println (c/string response))
(println end)))
 
 (defn -main
  []
  (println start-app)
  (test-http)
  (println end-app))
 /code
 
 The output looks as follows:
 
 output
 $ lein run
 SLF4J: Failed to load class org.slf4j.impl.StaticLoggerBinder.
 SLF4J: Defaulting to no-operation (NOP) logger implementation
 SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for
 further details.
 start-app
 start
 await
 string
 html
 headtitle301 Moved Permanently/title/head
 body bgcolor=white
 centerh1301 Moved Permanently/h1/center
 hrcenternginx/0.7.67/center
 /body
 /html
 end
 end-app
 
 [...hangs for ever...]
 
 /output
 
 But this program never ends, just hangs for ever.
 I thought that it might be Windows issue where I first tried it,
 but on Linux there is the same problem.
 
 Do you have any idea what I'm doing wrong or where might be the
 problem?
 
 My environment looks as follows:
 $ java -version
 java version 1.6.0_17
 Java(TM) SE Runtime Environment (build 1.6.0_17-b04)
 Java HotSpot(TM) Client VM (build 14.3-b01, mixed mode, sharing)
 $ lein version
 Leiningen 1.4.2 on Java 1.6.0_17 Java HotSpot(TM) Client VM
 $ ls lib
 async-http-client-1.5.0.jar  clojure-1.2.0.jar  clojure-
 contrib-1.2.0.jar  http.async.client-0.2.2.jar  netty-3.2.3.Final.jar
 slf4j-api-1.6.1.jar
 $ uname -a
 WindowsNT ww011221 1 5 x86
 
 Br,
 Rob
 
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Re: http.async.client v0.2.2 released

2011-02-09 Thread Hubert Iwaniuk

Hi Rob,

Please see following code:
(ns twitter-stream
  (:require [http.async.client :as c]
[org.danlarkin.json :as j]))

(def u ...)
(def p ...)

(defn -main []
  (let [resp (c/stream-seq :get 
http://stream.twitter.com/1/statuses/sample.json;
   :auth {:user ahcclj :password ahcclj11}
   :timeout -1)]
(doseq [twit-str (c/string resp)]
  (try
(let [twit (j/decode-from-str twit-str)
  u (get-in twit [:user :screen_name])
  t (:text twit)]
  (if (or (nil? u) (nil? t))
(println Twit not decoded properly:  twit)
(println u = t)))
(catch Exception e
  (println Failed to parse:  twit-str (.getMessage e))
  
  (c/close))

You don't need to create new client.

Now that I think of it it probably is a bug that one client is started by 
default.

HTH,
Hubert.

On Feb 9, 2011, at 4:21 PM, Rob Wolfe wrote:

 
 I created another test function like this:
 
 code
 (defn test-http-with-close
  []
  (println start)
  (binding [*client* (c/create-client)]
(let [response (c/GET http://github.com/neotyk/
 http.async.client/)]
  (println await)
  (c/await response)
  (println string)
  (println (c/string response)))
(println close)
(c/close *client*))
(println end))
 /code
 
 but it didn't help.
 Are you using the same java version, clojure version and the same
 versions of all libraries
 and it does not hang?
 There must be something.
 
 Br,
 Robert
 
 
 On 9 Lut, 15:51, Hubert Iwaniuk neo...@kungfoo.pl wrote:
 Hi Rob,
 
 You need to close the client once you are done with it.
 Please see Managing http.async.client of manual especially Closing 
 http.async.clienthttp://neotyk.github.com/http.async.client/docs.html#sec-1_2_6_11
 
 HTH,
 Hubert.
 
 On Feb 9, 2011, at 3:29 PM, Rob Wolfe wrote:
 
 
 
 
 
 
 
 
 
 On 7 Lut, 19:30, Hubert Iwaniuk neo...@kungfoo.pl wrote:
 Hi All,
 
 Just released v0.2.2 of HTTP Asynchronous Client.
 
 I have some problem using this library. Having such simple testing
 program:
 code
 (ns test.http
  (:require [http.async.client :as c]))
 
 (defn test-http
  []
  (println start)
  (let [response (c/GET http://github.com/neotyk/
 http.async.client/)]
(println await)
(c/await response)
(println string)
(println (c/string response))
(println end)))
 
 (defn -main
  []
  (println start-app)
  (test-http)
  (println end-app))
 /code
 
 The output looks as follows:
 
 output
 $ lein run
 SLF4J: Failed to load class org.slf4j.impl.StaticLoggerBinder.
 SLF4J: Defaulting to no-operation (NOP) logger implementation
 SLF4J: Seehttp://www.slf4j.org/codes.html#StaticLoggerBinderfor
 further details.
 start-app
 start
 await
 string
 html
 headtitle301 Moved Permanently/title/head
 body bgcolor=white
 centerh1301 Moved Permanently/h1/center
 hrcenternginx/0.7.67/center
 /body
 /html
 end
 end-app
 
 [...hangs for ever...]
 
 /output
 
 But this program never ends, just hangs for ever.
 I thought that it might be Windows issue where I first tried it,
 but on Linux there is the same problem.
 
 Do you have any idea what I'm doing wrong or where might be the
 problem?
 
 My environment looks as follows:
 $ java -version
 java version 1.6.0_17
 Java(TM) SE Runtime Environment (build 1.6.0_17-b04)
 Java HotSpot(TM) Client VM (build 14.3-b01, mixed mode, sharing)
 $ lein version
 Leiningen 1.4.2 on Java 1.6.0_17 Java HotSpot(TM) Client VM
 $ ls lib
 async-http-client-1.5.0.jar  clojure-1.2.0.jar  clojure-
 contrib-1.2.0.jar  http.async.client-0.2.2.jar  netty-3.2.3.Final.jar
 slf4j-api-1.6.1.jar
 $ uname -a
 WindowsNT ww011221 1 5 x86
 
 Br,
 Rob
 
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[ANN] http.async.client v0.2.2 released

2011-02-07 Thread Hubert Iwaniuk

Hi All,

Just released v0.2.2 of HTTP Asynchronous Client.

Featuring following changelog http://bit.ly/hc9dxt

- get-encoding helper works w/o Content-Type header
- upgrade async-http-client to v1.5.0
- exposed more configuration options
- zero byte copy mode
- allow providing your own poll
- allow Asynchronous Connect
- fix seq streaming API
- lots of performance improvements from async-http-client to v1.5.0

Uploaded to clojars http://bit.ly/hVAY8z

Documentation is here: http://bit.ly/epmcMw

Enjoy fresh release,
Hubert.

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Clojure Job Opening in Amsterdam area

2011-01-14 Thread Hubert Iwaniuk

Hi Clojurians,

My employer Sourcesense is looking for Clojure Developer to hire/contract in 
Amsterdam area.
Please see opening details http://www.sourcesense.nl/careers/#clj

Best regards,
Hubert Iwaniuk.

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Re: problem with stream

2011-01-06 Thread Hubert Iwaniuk

Shameless plug: or use http.async.client
http://neotyk.github.com/http.async.client/docs.html#sec-1_2_4_1
(let [resp (c/stream-seq :get url)]
  (doseq [s (string resp)]
(println s)))

Cheers,
Hubert.



On Thu, Jan 6, 2011 at 5:34 PM, Aaron Cohen aa...@assonance.org wrote:
 On Wed, Jan 5, 2011 at 5:13 PM, Ken Wesson kwess...@gmail.com wrote:
 On Wed, Jan 5, 2011 at 4:40 PM, rainerh rainer.hahnek...@gmail.com wrote:
 Hello everybody,

 I'm trying to use clojure to parse web sites. Unfortunately there is
 some problem with following code (used library is Apache Commons HTTP
 Client):

 (defn request [url]
  (let [client (new org.apache.http.impl.client.DefaultHttpClient)]
    (with-open [rdr (reader
                     (.getContent
                      (.getEntity
                       (.execute client (new
 org.apache.http.client.methods.HttpGet url)
                ]


 As an aside, the following is an alternate way of writing that intializer:

 (- client
     (.execute (org.apache.http.client.methods.HttpGet. url))
    .getEntity .getContent reader)

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Re: Knuth's literate programming tangle function in Clojure

2011-01-04 Thread Hubert Iwaniuk

Hi Seth,

Yes I did play with org-mode + babel for clojure.
It works great :-)
Just make sure you are using latest and greatest of org-mode.

Cheers,
Hubert.



On Tue, Jan 4, 2011 at 3:34 PM, Seth wbu...@gmail.com wrote:
 have you guys checked out org-mode + babel for emacs? This would be an
 excellent place to start  to do literate programming. Interesting
 ideas ... maybe i will try this in my own code ...

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Re: Knuth's literate programming tangle function in Clojure

2011-01-04 Thread Hubert Iwaniuk

I would say start here:
http://orgmode.org/worg/org-contrib/babel/languages/ob-doc-clojure.html

Cheers,
Hubert



On Tue, Jan 4, 2011 at 4:12 PM, Robert McIntyre r...@mit.edu wrote:
 Just discovered org-mode myself --- does anyone know of guide to using
 it with clojure for a total newbie?

 sincerely,
 --Robert McIntyre

 On Tue, Jan 4, 2011 at 9:57 AM, Hubert Iwaniuk neo...@kungfoo.pl wrote:
 Hi Seth,

 Yes I did play with org-mode + babel for clojure.
 It works great :-)
 Just make sure you are using latest and greatest of org-mode.

 Cheers,
 Hubert.



 On Tue, Jan 4, 2011 at 3:34 PM, Seth wbu...@gmail.com wrote:
 have you guys checked out org-mode + babel for emacs? This would be an
 excellent place to start  to do literate programming. Interesting
 ideas ... maybe i will try this in my own code ...

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Re: is it possible to check if a promise has been delivered to without blocking?

2010-09-14 Thread Hubert Iwaniuk

Hi Sunil,

Before it gets to clojure.core you could use it like that:
http://github.com/neotyk/http.async.client/blob/master/src/http/async/client/util.clj#L21

Cheers,
Hubert.


On Tue, Sep 14, 2010 at 8:51 AM, Sunil S Nandihalli
sunil.nandiha...@gmail.com wrote:
 Hello Everybody,
  Let us say I have something like
 (def s (promise))
 .
 .
 .
 .
 now can I check if the promise hase been delivered ..
 Thanks
 Sunil.


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Re: is it possible to check if a promise has been delivered to without blocking?

2010-09-14 Thread Hubert Iwaniuk

Glad I could help,
Hubert.

On Tue, Sep 14, 2010 at 9:39 AM, Sunil S Nandihalli su...@gridpro.com wrote:
Thanks Hubert,
That is exactly what I was looking for.
Sunil.

On Tue, Sep 14, 2010 at 12:54 PM, Hubert Iwaniuk neo...@kungfoo.pl wrote:

Hi Sunil,

Before it gets to clojure.core you could use it like that:

http://github.com/neotyk/http.async.client/blob/master/src/http/async/client/util.clj#L21

Cheers,
Hubert.

On Tue, Sep 14, 2010 at 8:51 AM, Sunil S Nandihalli
sunil.nandiha...@gmail.com wrote:
Hello Everybody,
Let us say I have something like
(def s (promise))
.
.
.
.
now can I check if the promise hase been delivered ..
Thanks
Sunil.

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Sunil S Nandihalli,
Manager and Technical Lead,
GridPro India Operations,
Program Development Co. LLC India Branch
Bangalore.
ph: 9980520430

Re: Does 'require' with the :reload option have a tendency to build up memory?

2010-09-12 Thread Hubert Iwaniuk

Have you tried class unloading options of JVM?
CMSClassUnloadingEnabled and TraceClassUnloading

HTH,
Hubert.



On Sat, Sep 11, 2010 at 9:19 PM, Rayne disciplera...@gmail.com wrote:
 As it turns out, this wasn't a memory leak at all. I decided to see if
 I could max sexpbot's memory out by reloading. I got it to rise around
 20-30 megs and then it stabilized and eventually jumped down 10 megs
 and didn't rise again (gave up 10 reloads later). I don't know how
 this stuff works, but I suppose maybe the memory just remained
 reserved or something. GCing does absolutely nothing. For a smaller-
 scale test, you can just try requiring clojure.java.io or some other
 namespace about 100-500 times and watch memory while doing so. It'll
 grow pretty substantially.

 Anyway, it's doesn't appear to be a real problem at all.

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Re: http.async.client v0.2.0

2010-09-11 Thread Hubert Iwaniuk

Thanks Shantanu.

I think github is most popular among Clojure projects, so looking at
http://github.com/languages/Clojure might help, but there is no
structure like java-source.net.

Cheers,
Hubert



On Sat, Sep 11, 2010 at 9:58 AM, Shantanu Kumar
kumar.shant...@gmail.com wrote:
 This is cool. I wonder we should have a central index of Clojure
 libraries something like this: http://java-source.net/

 Regards,
 Shantanu

 On Sep 10, 2:14 pm, Hubert Iwaniuk neo...@kungfoo.pl wrote:
 I'm happy to announce release of http.async.client v0.2.0 an Asynchronous 
 HTTP Client for Clojure.

 This is wrapper/adapter on top 
 ofhttp://github.com/AsyncHttpClient/async-http-client

 Project:http://github.com/neotyk/http.async.client/
 Documentation:http://neotyk.github.com/http.async.client/
 API autodoc:http://neotyk.github.com/http.async.client/autodoc/
 Changelog:http://github.com/neotyk/http.async.client/blob/master/changelog.org

 Simple usage:
 (ns sample (:require [http.async.client :as c]))
 (let [response (c/GET http://github.com/neotyk/http.async.client/;)]
   (c/await response)
   (c/string response))

 Allows you to consume Twitter Streaming API with an 
 ease:http://codemeself.blogspot.com/2010/09/asynchronous-http-client-for-c...http://github.com/neotyk/http.async.client/raw/master/twitter-sample.clj

 Changes in this release:
 * HTTP Streams as clojure.core/seq
 * Cookies support
 * Authentication support (BASIC and DIGEST)
 * Proxy per request
 * Allowed branding User-Agent
 * Keyworded arguments in API

 I would love to hear from you what you think of this library,
 Hubert.

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Re: http.async.client v0.2.0

2010-09-11 Thread Hubert Iwaniuk

Hi Shantanu,

autodoc configuration is:
http://github.com/neotyk/http.async.client/blob/master/project.clj#L13
in :dev-dependencies there is [autodoc 0.7.1]
to generate it: lein autodoc

For rest of project site I used org-mode and infojs.

Cheers,
Hubert.



On Sat, Sep 11, 2010 at 10:07 AM, Shantanu Kumar
kumar.shant...@gmail.com wrote:
 One question - how is the (auto)doc generated?

 Regards,
 Shantanu

 On Sep 10, 2:14 pm, Hubert Iwaniuk neo...@kungfoo.pl wrote:
 I'm happy to announce release of http.async.client v0.2.0 an Asynchronous 
 HTTP Client for Clojure.

 This is wrapper/adapter on top 
 ofhttp://github.com/AsyncHttpClient/async-http-client

 Project:http://github.com/neotyk/http.async.client/
 Documentation:http://neotyk.github.com/http.async.client/
 API autodoc:http://neotyk.github.com/http.async.client/autodoc/
 Changelog:http://github.com/neotyk/http.async.client/blob/master/changelog.org

 Simple usage:
 (ns sample (:require [http.async.client :as c]))
 (let [response (c/GET http://github.com/neotyk/http.async.client/;)]
   (c/await response)
   (c/string response))

 Allows you to consume Twitter Streaming API with an 
 ease:http://codemeself.blogspot.com/2010/09/asynchronous-http-client-for-c...http://github.com/neotyk/http.async.client/raw/master/twitter-sample.clj

 Changes in this release:
 * HTTP Streams as clojure.core/seq
 * Cookies support
 * Authentication support (BASIC and DIGEST)
 * Proxy per request
 * Allowed branding User-Agent
 * Keyworded arguments in API

 I would love to hear from you what you think of this library,
 Hubert.

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[ANN] http.async.client v0.2.0

2010-09-10 Thread Hubert Iwaniuk

I'm happy to announce release of http.async.client v0.2.0 an Asynchronous HTTP 
Client for Clojure.

This is wrapper/adapter on top of 
http://github.com/AsyncHttpClient/async-http-client

Project: http://github.com/neotyk/http.async.client/
Documentation: http://neotyk.github.com/http.async.client/
API autodoc: http://neotyk.github.com/http.async.client/autodoc/
Changelog: http://github.com/neotyk/http.async.client/blob/master/changelog.org

Simple usage:
(ns sample (:require [http.async.client :as c]))
(let [response (c/GET http://github.com/neotyk/http.async.client/;)]
  (c/await response)
  (c/string response))

Allows you to consume Twitter Streaming API with an ease:
http://codemeself.blogspot.com/2010/09/asynchronous-http-client-for-clojure.html
http://github.com/neotyk/http.async.client/raw/master/twitter-sample.clj

Changes in this release:
* HTTP Streams as clojure.core/seq
* Cookies support
* Authentication support (BASIC and DIGEST)
* Proxy per request
* Allowed branding User-Agent
* Keyworded arguments in API

I would love to hear from you what you think of this library,
Hubert.

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Re: Generating functions programmatically

2010-09-10 Thread Hubert Iwaniuk

Hi icemaze,

Please look at how fns are generated in http.async.client 
http://github.com/neotyk/http.async.client/blob/master/src/http/async/client/util.clj#L54
this macro is later used here: 
http://github.com/neotyk/http.async.client/blob/master/src/http/async/client.clj#L43

HTH,
Hubert.

On Sep 10, 2010, at 9:39 PM, icemaze wrote:

 Hi, I'm developing a small DSL with Clojure and I need to define many
 similar functions. I'd like to do that programmatically, of course.
 
 My solution (involving a simple macro) doesn't work, so I won't bother
 you with it. I'll post it if anyone asks.
 
 Basically what I need is: given a list of keywords, for each keyword x
 i need to define a function whose name is (str prefix- (name x)).
 The function has a very short body which uses x in one place
 (something like (fn [n] (= n x))).
 
 Can you help me please? I've been banging my head against this for
 over four hours and I'm getting a little frustrated.
 
 Thanks.
 
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Re: Creating something Seqable in clojure

2010-07-30 Thread Hubert Iwaniuk

Hi Nicolas,

Please take a look at how headers lazy map is constructed in ahc-clj 
http://github.com/neotyk/ahc-clj/blob/master/src/async/http/client/headers.clj
It is a map and is sequable as well.

HTH,
Hubert.

On Jul 30, 2010, at 12:04 PM, Nicolas Oury wrote:

 Dear all,
 
 I am using deftype to write a pure data structure.
 It would be neat to make it Seqable.
 
 I looked a bit around on how to make that and did not manage to figure it out.
 I can implement ISeq but it does not seem to be enough.
 There seems to be an ASeq that my data structure should inherit from,
 but I cannot do that with deftype.
 
 Is there a way to do a new type of Seq today or I should wait that
 clojure-in-clojure advances a bit more to try that?
 Or should I not try to implement anything directly and use lazy-seq?
 
 
 Best regards,
 
 Nicolas.
 
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Re: ANN: Deview - Better test results

2010-07-15 Thread Hubert Iwaniuk

I've just pushed clansi to clojars http://clojars.org/clansi

HTH,
Hubert.

On Jul 15, 2010, at 9:26 AM, Jeff Rose wrote:

 On Jul 15, 6:27 am, Phil Hagelberg p...@hagelb.org wrote:
 Yeah, a web display is certainly much richer. I'm totally an edge
 case, but when you're remote pairing it's pretty important to keep
 things in the shared context just so you can be sure you're looking at
 the same thing.
 
 Another option is to use ANSI color codes to markup the text and
 display it in the terminal.  This little library from the Amsterdam
 Clojurians will provide all of the styles you use in the demo (colors,
 bold, underline, and highlighted background color):
 
 http://github.com/ams-clj/clansi
 
 -Jeff

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ANN: Async Http Client for Clojure aka ahc-clj

2010-07-14 Thread Hubert Iwaniuk

Hi *

Just release first version of Async Http Client for Clojure.
http://clojars.org/ahc-clj

This is async http client that is backed by Async Http Client 
http://bit.ly/aUctdM which by default runs on top of Netty.

General documentation on project is available here: 
http://neotyk.github.com/ahc-clj/
More detailed docs: http://neotyk.github.com/ahc-clj/docs.html
Autodoc: http://neotyk.github.com/ahc-clj/autodoc/
Code: http://github.com/neotyk/ahc-clj

Two basic examples of usage:

(let [resp (GET your url {:query {:param-name some-value}})
 status (:status @resp)
 headers (:headers @resp)
 body (:body @resp)]
 (println (:code status))
 (println (apply str (map char body

(let [stream (ref #{})
resp (STREAM :get your url
(fn [state bytes]
   (if (not (empty? bytes))
  (let [p (apply str (map char bytes))]
 (dosync (alter stream conj p)))
   (println Empty body part 
received.]
 ; do something to @stream
 ; @resp will not get delivered until streaming is done
 )

In first example resp is a promise that is delivered once response is received.
Second example is showing how to consume a HTTP Stream, note that it is 
collecting body parts, which is not necessary.
You can provide a callback that will not collect those parts but just acts on 
one that was currently received.

Next releases should expose more configuration body streaming from client to 
server, multipart support.

I hope you'll like it,
Hubert.

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[ANN] Clansi - ANSI color and style codes for Clojure

2010-04-15 Thread Hubert Iwaniuk

Hi *,

Last Wednesday at Amsterdam Clojurians Meetup http://bit.ly/akuN8F we
created clansi http://bit.ly/bLzHH2 .
Clansi is first step in our effort to make REPL a bit more friendly,
it make ANSI colors and styles easy in Clojure.
Intention is to provide easy way to swap clojure.core/doc with colored
one http://bit.ly/dcfUmJ .

Source can be found github: http://bit.ly/9icC1Y

Cheers,
Hubert.

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Re: Dutch Clojure users

2010-02-07 Thread Hubert Iwaniuk

Great to hear that there is Clojure group around.

For ease of finding it:
http://groups.google.com/group/amsterdam-clojurians?hl=en

Cheers,
Hubert



On Sun, Feb 7, 2010 at 4:37 AM, Jeff Rose ros...@gmail.com wrote:
 There is a group of us hacking Clojure in Amsterdam and Utrecht.
 Where are you?  Join the Amsterdam Clojurians Google group, and we'll
 meet for a pizza.

 -Jeff

 On Feb 6, 12:26 pm, Joop Kiefte iko...@gmail.com wrote:
 Hello folks!

 I am from the Netherlands and I am learning Clojure now, using it at work,
 and loving it so far. Are there any more dutch Clojure programmers on this
 list so we can meet? I am also interested to know about Clojure-programmers
 from any country in a reasonable distance from Strasbourg.

 Joop Kiefte

 --
 Communication is essential. So we need decent tools when communication is
 lacking, when language capability is hard to acquire...

 -http://esperanto.net -http://esperanto-jongeren.nl

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Re: Dutch Clojure users

2010-02-06 Thread Hubert Iwaniuk

Hoi Joop,

I live in NL.

Cheers,
Hubert.

On Sat, Feb 6, 2010 at 12:26 PM, Joop Kiefte iko...@gmail.com wrote:
 Hello folks!
 I am from the Netherlands and I am learning Clojure now, using it at work,
 and loving it so far. Are there any more dutch Clojure programmers on this
 list so we can meet? I am also interested to know about Clojure-programmers
 from any country in a reasonable distance from Strasbourg.
 Joop Kiefte
 --
 Communication is essential. So we need decent tools when communication is
 lacking, when language capability is hard to acquire...

 - http://esperanto.net  - http://esperanto-jongeren.nl

 Linux-user #496644 (http://counter.li.org) - first touch of linux in 2004

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clojure-contrib build error

2009-04-30 Thread Hubert Iwaniuk

Hi All,

I'm newcomer to clojure.

Downloaded clojure.jar.
Decided to go with VimClojure.
So I need clojure-contrib.
svn co clojure-contrib, and failed to build.
svn co clojure, build fine retried building clojure-contrib, went fine.

It's fine by me, but I believe that is not really a good user experience to
need to build from sources just to start playing around.

It might be good to have clojure-contrib released as clojure is released.

Cheers,
   Hubert.

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Re: clojure-contrib build error

2009-04-30 Thread Hubert Iwaniuk

Hi Robert,

I got it running, only thing I'm saying is that it could be easier to get
clojure-contrib.
I'm running Linux and use Vim so Clojure Box is not really for me.

Thank you,
   Hubert


On Thu, Apr 30, 2009 at 12:54 PM, Robert Campbell rrc...@gmail.com wrote:


 If you're on Windows, please take a look at Clojure Box:

 http://clojure.bighugh.com/

 It comes with an installer which sets you up with an Emac environment
 running Clojure + contrib.

 It's everything you need to get up in running in minutes. This is the
 path I took when I faced similar difficulties as you.

 Let me know later if you need help adding in more depedencies like
 Compojure or DB drivers, as I had to struggle through that a tiny bit.

 Rob



 On Thu, Apr 30, 2009 at 12:08 PM, Hubert Iwaniuk neo...@kungfoo.pl
 wrote:
  Hi All,
 
  I'm newcomer to clojure.
 
  Downloaded clojure.jar.
  Decided to go with VimClojure.
  So I need clojure-contrib.
  svn co clojure-contrib, and failed to build.
  svn co clojure, build fine retried building clojure-contrib, went fine.
 
  It's fine by me, but I believe that is not really a good user experience
 to
  need to build from sources just to start playing around.
 
  It might be good to have clojure-contrib released as clojure is released.
 
  Cheers,
 Hubert.
 
  
 

 


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Re: clojure-contrib build error

2009-04-30 Thread Hubert Iwaniuk

Hi Laurent,

Thank you for information.

It would be nice if this kind of info would be available as Featured Wiki
page.

Regards,
   Hubert.


On Thu, Apr 30, 2009 at 2:33 PM, Laurent PETIT laurent.pe...@gmail.comwrote:


 Hi Hubert,

 Howard Lewis Ship is maintaining a maven2 repository. See

 http://groups.google.com/group/clojure/browse_thread/thread/ee67ca7f69bc7e82/1ab62dcf4e2b33c9?lnk=gstq=howard%2Brepository#1ab62dcf4e2b33c9
 for details,

 Regards,

 --
 Laurent

 2009/4/30 Hubert Iwaniuk neo...@kungfoo.pl:
  Hi Robert,
 
  I got it running, only thing I'm saying is that it could be easier to get
  clojure-contrib.
  I'm running Linux and use Vim so Clojure Box is not really for me.
 
  Thank you,
 Hubert
 
 
  On Thu, Apr 30, 2009 at 12:54 PM, Robert Campbell rrc...@gmail.com
 wrote:
 
  If you're on Windows, please take a look at Clojure Box:
 
  http://clojure.bighugh.com/
 
  It comes with an installer which sets you up with an Emac environment
  running Clojure + contrib.
 
  It's everything you need to get up in running in minutes. This is the
  path I took when I faced similar difficulties as you.
 
  Let me know later if you need help adding in more depedencies like
  Compojure or DB drivers, as I had to struggle through that a tiny bit.
 
  Rob
 
 
 
  On Thu, Apr 30, 2009 at 12:08 PM, Hubert Iwaniuk neo...@kungfoo.pl
  wrote:
   Hi All,
  
   I'm newcomer to clojure.
  
   Downloaded clojure.jar.
   Decided to go with VimClojure.
   So I need clojure-contrib.
   svn co clojure-contrib, and failed to build.
   svn co clojure, build fine retried building clojure-contrib, went
 fine.
  
   It's fine by me, but I believe that is not really a good user
 experience
   to
   need to build from sources just to start playing around.
  
   It might be good to have clojure-contrib released as clojure is
   released.
  
   Cheers,
  Hubert.
  
   
  
 
 
 
 
  
 

 


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Re: Clojure Web Framework, what I want to add

2009-03-17 Thread Hubert Iwaniuk

Hi Jeffrey,
I was recently thinking of adding support for https://grizzly.dev.java.net/
 in http://github.com/weavejester/compojure/tree/master.
Just need some time to get my head around compojure.

Cheers,
Hubert.


On Tue, Mar 17, 2009 at 12:52 AM, Jeffrey Straszheim 
straszheimjeff...@gmail.com wrote:

 I'd love to see something built around very-high scalability, using NIO and
 thread pools and such.


 On Mon, Mar 16, 2009 at 7:40 PM, Sean francoisdev...@gmail.com wrote:


 I'm not sure if some of the design inputs make sense, specifically
 Spring and Hibernate.

 Point 1 - I've found the strength of Spring to be making up for the
 weaknesses of Java.  Once you have first class functions, macros, and
 multi-methods (to name a few), Spring doesn't bring much to the table
 any more.  Add in a few Unix utilities like cron and others, you
 remove the rest of the features.

 Point 2 - As for Hibernate, ORM doesn't make much sense with a
 functional language either.  The SQL library in clojure-contrib lets
 you load a map, and you can create way more interesting queries with
 clojure than hibernate.  S-expressions are that powerful.

 Point 3 - I'd follow Rails example and use strong defaults, and resort
 to XML only when necessary.

 Point 4 - Sounds good.

 Point 5 - Have you looked into compojure?  It does a really good job
 of turning s-expressions into HTML.

 Point 5 (the second one) - See compojure again.

 Point 6  7 - This is where a lot of work is to be done.  I'm not sure
 how to respond right now.  I'll think about it.

 Point 8 - This is why clojure is awesome.  I'll leave this as an
 exercise to the user :)

 Point 9 - Yeah, this would be a great feature.

 That's my thoughts.

 On Mar 16, 7:17 pm, BerlinBrown berlin.br...@gmail.com wrote:
  After many years (decade) of web development, here are the things that
  I want in a framework, mostly based in clojure:
 
  What do you think and what you add.  This is ambitious and just a
  ideas of what I would add.  What would you want from your ideal
  framework?
 
  1. Based on Spring Framework for middleware:
  Reason: there are years and years and years of development spent on
  spring and there are many things done right.  If I were integrating
  with any other third party libraries, I would use spring.  Spring is
  added to my framework.
 
  2. Based on Hibernate for ORM mapping:
  Reason: the defacto standard for ORM mapping with Java.  And also used
  by NHibernate.  There is a lot of support for most popular databases.
 
  3. Clojure/Lisp based configuration AND default XML configurations.
  This has become the standard way to configure a J2EE web application
  including spring and hibernate.  But I would like a lisp oriented
  configuration.
 
  4. Easy mapping to URLs.  I like python's approach for URL mapping
 
  5. Clojure based, framework based server pages AND JSPs.  I have
  always hated some aspects of JSP and ASPs, etc, etc.  They are just
  too complicated.  I would want to use Clojure code within the
  framework oriented server page and other predefined tags.
 
  5. Lift like reusable server pages.  Lift has an interesting approach
  for resuing the same page.  E.g. you have an if-else statement within
  the page.
 
  If request == GET
  ...render this
  if request == POST
   ...render this.
  if URL == 'abc.html'
   .. render this.
 
  I want to embed this in my framework.  You only touch one page, but
  you get different outputs depending on the request method or URL, etc,
  etc.
 
  6. Use of Clojure syntactic sugar -- TO BE DETERMINED.   There is the
  ability to use powerful Clojure constructs  with this framework but I
  haven't figured out how yet.
 
  7. Better integration of CSS, Javascript, HTML.   A lot of a web
  application still resides with the client side.   I have yet to see an
  web framework that addresses client development (besides GWT).   Maybe
  something as simple as server page tags for CSS?  Javascript?
 
  8.  Additional third party libraries:
 
  Lucene, iText, jFreeChart, optional Terracotta integration
  
 
  Other optional/additional thoughts.
 
  9. Clear separation between back-end and front-end layers



 


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